authentication
   
      Configures user authentication parameters. Users are allowed
         or denied access to the network based on the authentication parameters set.
      Supported in the following platforms: 
         
         
            - Access Points — AP505i, AP510i/e,
               AP560i/h
 
            - Service Platforms
               — NX5500, NX7500, NX9500, NX9600, VX9000
 
         
       
      Syntax
         
         authentication [access-method|directed-request|server|service]
         authentication access-method [all|console|ssh|telnet|web] {(console|ssh|telnet|
web)}
         authentication directed-request
         authentication server <1-2> [host|retry-timeout-factor|timeout]
         authentication server <1-2> host <IP/HOSTNAME> {secret [0 <SECRET>|2 <SECRET>|
<SECRET>]} {port <1-65535>}
         authentication server <1-2> retry-timeout-factor <50-200>
         authentication server <1-2> timeout <3-60> {attempts <1-10>}
         authentication service <SERVICE-NAME> {protocol <AUTHENTICATION-PROTO-NAME>}
       
      Parameters
         
         authentication access-method [all|console|ssh|telnet|web] {(console|ssh|telnet|
web)}
         
               
               
               
                  
                     | access-method | 
                     Configures access modes for TACACS authentication. The options are:
                        console, SSH, Telnet, Web, and all. | 
                  
                  
                     | all | 
                     Authenticates users using all access modes (console, SSH, and
                        Telnet) | 
                  
                  
                     | console | 
                     Authenticates users using console access only | 
                  
                  
                     | ssh | 
                     Authenticates users using SSH access only | 
                  
                  
                     | telnet | 
                     Authenticates users using Telnet access only | 
                  
                  
                     | web | 
                     Authenticates users using Web interface only | 
                  
               
            
 
         authentication directed-request
         
               
               
               
                  
                     | directed-request | 
                     Enables user to specify TACACS server to use with `@server'. This option
                        is disabled by default. Note: The specified server should be present in the configured servers
                           list. 
 | 
                  
               
            
 
         authentication server <1-2> host <IP/HOSTNAME> {secret [0 <SECRET>|2 <SECRET>|
<SECRET>]} {port <1-65535>}
         
               
               
               
                  
                     | server <1-2> | 
                     Configures a TACACS authentication server. Up to 2 TACACS servers can be
                           configured
                           - <1-2> – Specify
                              the TACACS server index from 1 - 2.
 
                         
 | 
                  
                  
                     | host <IP/HOSTNAME> | 
                     Sets the TACACS server‘s IP address or hostname | 
                  
                  
                     | secret [0 <SECRET>| 2 <SECRET>| <SECRET>] | 
                     Configures the secret key used to authenticate with the TACACS server
                           - 0 <SECRET> –
                              Configures a clear text secret
 
                           - 2 <SECRET> –
                              Configures an encrypted secret
 
                           - <SECRET> –
                              Specify the secret key. The shared key should not exceed 127
                              characters.
 
                         
 | 
                  
                  
                     | port <1-65535> | 
                     Optional. Specifies the port used to connect to the TACACS server
                           - <1-65535> –
                              Specify a value for the TCP authentication port from 1 - 65535. The
                              default port is 49.
 
                         
 | 
                  
               
            
 
         authentication server <1-2> retry-timeout-factor <50-200>
         
               
               
               
                  
                     | server <1-2> | 
                     Configures a TACACS authentication server. Up to 2 TACACS servers can be
                           configured
                           - <1-2> – Specify
                              the TACACS server index from 1 - 2.
 
                         
 | 
                  
                  
                     | retry-timeout-factor <50-200> | 
                     Configures timeout scaling between two consecutive TACACS authentication
                           retries
                           - <50-200> –
                              Specify the scaling factor from 50 - 200. The default is 100.
 
                         
A value of 100 indicates the interval between consecutive retires
                           remains the same irrespective of the number of retries. 
A value
                           lesser than 100 indicates the interval between consecutive retries
                           reduces with each successive retry. 
A value greater than 100
                           indicates the interval between consecutive retries increases with each
                           successive retry. 
 | 
                  
               
            
 
         authentication server <1-2> timeout <3-60> {attempts <1-10>}
         
               
               
               
                  
                     | server <1-2> | 
                     Configures a TACACS authentication server. Up to 2 TACACS servers can be
                           configured
                           - <1-2> – Specify
                              the TACACS server index from 1- 2.
 
                         
 | 
                  
                  
                     | timeout <3-60> | 
                     Configures the timeout, in seconds, for each request sent to the TACACS
                        server. This is the time allowed to elapse before another request is sent to
                        the TACACS server. If a response is received from the TACACS server within
                        this time, no retry is attempted.
                           - <3-60> – Specify
                              a value from 3- 60 seconds. The default is 3 seconds.
 
                         
 | 
                  
                  
                     | attempts <1-10> | 
                     Optional. Indicates the number of retry attempts to make before giving
                           up
                           - <1-10> – Specify
                              a value from 1 -10. The default is 3.
 
                         
 | 
                  
               
            
 
         authentication service <SERVICE-NAME> {protocol <AUTHENTICATION-PROTO-NAME>}
         
               
               
               
                  
                     | service <SERVICE-NAME> | 
                     Configures the TACACS authentication service name | 
                  
                  
                     | protocol <AUTHENTICATION- PROTO-NAME> | 
                     Optional. Specify the authentication protocol used with this TACACS
                           policy Note: A maximum of
                           five entries is allowed. 
 | 
                  
               
            
 
       
      Examples
         
         nx9500-6C8809(config-aaa-tacacs-policy-test)#authentication directed-request
         nx9500-6C8809(config-aaa-tacacs-policy-test)#show context
aaa-tacacs-policy test
 authentication directed-request
 accounting server preference authorized-server-number
 accounting auth-fail
 accounting commands
nx9500-6C8809(config-aaa-tacacs-policy-test)#